Endless chain saw.



PATENTED SEPT. 11, 1906.

J. SMITH.

ENDLESS CHAIN SAW.

APPLICATION FILED DEG. 27. 1904.

D STATES PA. TENT @FFiQE.

JACOB SMITH, OF DES MOINES, IOWA.

ENDLE$S CHASN SAW.

Specification of Letters Patent.

.Fatented Sept. 11, 1906.

Application filed December 27, 1904, Serial No. 238,641.

To aZzi whom it may concern.- 1'

Be it known that I, JACOB SMITH, a citizen of the United States, residing at Des Moines,

in the county of Polk and State of Iowa, have invented a new and useful Endless Chain- Saw, of which the following is a specification.

My object is to provide a portable endless chain saw specially adapted to be manually held. and manipulated for cutting down trees and also adapted for cutting fallen trees into different lengths for different purposes.

My invention consists in the. construction of elements and subcombinations and the arrsncement and combinationof all the parts,

a hereinafter set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which- Figure 1 is a side view of the endless'saw and the frame upon which it is supported and operated. It shows a driving-wheel on a rotatable shaft in engagement with the saw, as required in practical use. Fig. 2 is an edge or top view of the machine-frarne shown in Fig. 1 and shows means for regulating the tension of the endless saw. Fig. 3 is a side view of one of the main portions of the frame that supports the endless saw and showsa smaller frame riveted to its inside face, as required to produce a track upon which the endless saw moves. Fig. 4 1s an enlarged transverse sectional view of the two plates of the main. frameand the frame between them that produces the track upon which the endless saw travels and also shows an oil-chamher for lubricatingthe tracks and saw and a removable plug that closes the aperture through which oil is filled into the chamber; Fig. an enlarged transverse sectional view through Fig. 1 and shows the ends of a jointed handle pivotally connected with the parallel outsides of-the small end of the main frame, as required to adjust the handle.

The numerals 1O designate the mating parts of. the main frame, and 12 the skeleton frame having straight sides and inwardlycurved ends fixed between them to produce a track for the endless saw.

A rotatable shaft 13 18 mounted in ad ustaide bearings 14, supported 1n brackets 15,

fix d to the outside faces of the mating parts of the main frame, as shown in- Fig. 2. et-screws 16 are seated in the bends of the brackets and connected with the bearings 14 for adjusting the shaft 13 relative to the frame and saw, as required for regulating the tension of the saw on the track of the frame.

A drivo-wheel 17 'is fixed on the shaft 13 and is composed of two mating metal disks 18 and a disk 19 of smaller diameter, preferably made of wood or other suitable material, adapted to increase friction of the saw-links that come in contact therewith when the links are engaged by the wheel, as required to move the saw in the grooved drive wheel thus formed. A wheel a, having trunnions b, is mounted between the small ends of the frame members 10 to support the saw.

A frame composed of two mating elbowshaped parts 23 is pivotally connected with the shaft 13, as shown in Fig. 2. An extension 24 is hinged to the ends of the parts 23 to serve as a handhold for adjusting the frame and operating the endless saw.

' A frame composed of two mating parts 25, provided with journals 26 on them inside faces, is pivotally connected with the narrow ends of the mating plates 10, as shown in Fig. 5, and an extension 27 is hinged. thereto to serve as a haudhold for a person to aid in operating the saw.

By means of the skeleton frame 12 and the sides 10, fixed thereto, an oi l-reservoir is produced for lulnicating the blocks in the chain and the track upon which. they are moved. A plug 1'. is fitted in an aperture in one of the sides 10, as shown in Fig. 4, to admit oil. Vent 1 are provided, as shown in Fig. 1 or in any suitable way, for lubricating the track.

it is obvious a crank-handle may be connected with the rotatable shaft as required for manually operating the saw or a suitable motor applied in. any suitable way as required for the practical operation of the invention.

To retain the frame that is pivoted to the shaft 13 stationary, a pin 28 is connected withono of the parts of the frame to enter a perforation in one of the bearings 14, as shown 111 F lg. 2 or in any suitable way.

By connecting a handle with each end of the machine persons at its ends can handle the machine advantageously, as required when in practical operation and also in movingit about.

Having thus set forth the purpose of my inveution and the manner of its construction and use, the practical operation and utility thereof will be readily understood by lumh. Letters Patent isn having s mightedges-e11 sends fixed between them chamber and means to close the o wing,-

vhernmn end. others fmnslier iseW composed of two -less sew, estranged and =3 tetehle s oft shaped hsraek fxedhetween' the with the art to Winch 1t ertelus.

W hat claim as new, and desize to secure th an endless chain 1 A frame for supper b fiat netmg solid sides and a track com her for storing oil for hf ieating the track, an opening in the frame 5L filling ii into the vents in the skeleton "frame for diseoez'ging oil, a drivewheei i'n'the large end of the frame, it pulleywfheel at the smell end. of the frame and an endless see arranged and combined to operateas set forth. 2. A frame for supporting an ei ildless chain saw, composed of two mating sides and a skeleton trackfixedbetween them, two elbow-shaped brackets fixed to the he e end. of the frame, two edjusteble hes-wings, rotetefqle shaft in said. hearings chive- Wheei fixed to the shaft between the two metin sides of the 1* *1e and a heei mounted in' t e other end the and an lei as set forth, for the pm;

3. A. for chain saw cc e skeleton t1 L elhowmheped oleekets fixed to the ofthe frame, ifl'o uijustehle beer; 1 e1 s 21151 7 j" j 4 t v Wheel oxe 1 to on we 'aWG mating sides j eejustehie fragile, toeerve 1 rot'etes um other end. the free:

and coIi-ahWd-to ope Wte 15 fol oh, purposes tei.

chain e end o1. the two z'o'zzvtztole e We mating sidesof pport and guide the of the frame, flame 'ngm. es pivotelly eoni'ie sh-a hendhoids 1" ends of seid 1111;? 5.113. for $6 .1 I cpivoted home clonalfiens'ehsving e; handiwld its outer 1y connected with thesmsllezkl In emachine.harzopemting an endless h'vewhee]. composed of two if itting etail disks and disk. of smaller diameter we muting nt-eteh'h'sks, in

saw etthe 'othez' en composed 01' two or the re "which thes weft ro toth e end of the handle and means for retsma' 1 ngthe' handle stetlona-l y, 11' Wheel to sup,

wheel, errhnged andeomhined to .p

whieh'the she-ft rotates finder)"sdgnste seeQeee two adjustable bearings, a rotatable shaft in, 75

seid'heel ings and a drive-wheel fizg'ed to'the shaft between the two rheti sides of the frame, a handle composed of ;'two mating-f parts havin sheft-beefings in their ends in s tes, handheld .hlngeo port end-gglide a sew at the other end of theb treckeaidfreine and an endless sew mounted on the tree m the frm ne and on the (invethe ne'nnel' set forth, for the purposes 7,; in snendlesswheinwow 1 fffiillii a smooth track, d. on. e13 edjeetsfhle shaft in. one 9.210. of i'azmee wheel to suppoit and guide sew its other end, endless ehein sew track and Wheels, hie-ens to adjust r end a handle composed of two mating shaped parts in which the edjustehie and an extension hingedto l sled ends, to operate-1n the manner 8. A11 endless-eheimsaw meohine eels mg e heme composed of two met11.,

1 z ieton track fiiied.v between, th

and 2*.- pred'eoe on oiLTe-serv'oi fe drive-whee hm 111g; s groove 1n 1ts circumferential e a,

of the frame, enmflem;"vfoeek 1 I Y L o5 guide a. sew in'its other end; endie chain sex, meensjto regu-tete. the tensic: the sewcomprz'sing an efl'juste'ble said drivewheel on the she-1%,: on fidjil$twe handle et the large end; ofthe fremee posed of two mating elbowsheped' pests handle at the other endf'of the "heme, ranged mid combined to opere'te ee see fox 9 In an endlesswheio-Sew moehine heme for supporting an endless sew, free: pivotefiy connected- With theeoWs of the home to serve as handles:eand Lmdhohis' hinged to said pivoted frames-to operate setforth. 

